Update to 4.9.1

Use SPDX license.

.gitignore

@@ -2,3 +2,4 @@
 /gtkmm-4.6.1.tar.xz
 /gtkmm-4.7.1.tar.xz
 /gtkmm-4.8.0.tar.xz
+/gtkmm-4.9.1.tar.xz

gtkmm4.0.spec

@@ -3,17 +3,17 @@
 %define release_version %(echo %{version} | awk -F. '{print $1"."$2}')
 
 %global glibmm_version 2.68.0
-%global gtk4_version 4.7.2
+%global gtk4_version 4.9.1
 %global cairomm_version 1.15.4
 %global pangomm_version 2.50.0
 %global gdk_pixbuf2_version 2.35.5
 
 Name:           gtkmm4.0
-Version:        4.8.0
+Version:        4.9.1
 Release:        %autorelease
 Summary:        C++ interface for the GTK+ library
 
-License:        LGPLv2+
+License:        LGPL-2.1-or-later
 URL:            https://www.gtkmm.org/
 Source0:        https://download.gnome.org/sources/gtkmm/%{release_version}/gtkmm-%{version}.tar.xz
 
@@ -80,7 +80,7 @@ cp -a demos/ _docs/
 
 %files
 %license COPYING
-%doc AUTHORS NEWS README
+%doc AUTHORS NEWS README.md
 %{_libdir}/libgtkmm-%{apiver}.so.0*
 
 %files devel

sources

@@ -1 +1 @@
-SHA512 (gtkmm-4.8.0.tar.xz) = 9cc769ad7d0fdfd675306a441697c63164d4b5221ab895bf06800a7e47b48d2e28b09cce057bcca8e95d1b20112a809d313ae485d349f5450cf11bb4eab361a6
+SHA512 (gtkmm-4.9.1.tar.xz) = 9c106caf21912e049372a2d8d18f43f68abe8293abb671f82bbe02433f29ea989bda1b668b1ce309d02b80c0cf7c38e88560ae372c4f9e988e520c02048a6e59